Discussion on The Springs of Invention Revisited by Dr R.J. Mainstone

Fresh impetus is being imparted by both Government and industry in a field of policy that construction has in the past found difficult to resolve - how to fund an expanding programme of innovation, research and development. John D. Allen

Codes of Practice Stan Lawrence reminds us of the origins of the change from elastic theory to limit stutes theory in the BS Codes and writes: Bearing in mind the present climate of discontent and concern over Codes and regulations, it is understandable that solutions are being considered. One has recently surfaced in a disguised form requesting a return to the elastic theory as a permitted design method. Verulam

The movements and strains which take place in masonry arches, and the way in which those strains lead to longitudinal cracks, are described. Some traditional views are considered to be untenable. The causes of the cracks have some implications for assessment and repair: Observations are made on the repair of cracks. Professor W.J. Harvey